Heater

The utility model relates to the technical field of drying equipment, and discloses a heater which comprises a heater body, a heat preservation layer is fixedly arranged on the inner wall of the heater body, connecting plates are fixedly connected to the two sides of the upper end face of the bottom layer of the heat preservation layer, and protective frames are fixedly connected to the upper end faces of the two connecting plates. Heating pipes are fixedly arranged in the two protection frames, a protection shell is fixedly connected to one side of the lower end face of the top layer of the heat preservation layer, an infrared temperature sensor and a control circuit are fixedly arranged at the positions, close to the front portion and the rear portion, in the protection shell correspondingly, and an air blower is fixedly arranged at the position, close to the lower portion, of the outer wall of one side of the device body; the output end of the air blower is fixedly connected with an air conveying pipe, the